98 gt with gear change

[Darkcrime]

I just upgraded my 98 mustang gt (auto) to a 3.73 gear, but I get no option for this under axle. All I get is "traction". Where do I go from here?

[johnc]

The speedometer is not controlled by the computer, it is driven mechanically by a cable from the tranny. Thus the Predator cannot compensate for this electronically. To correct the speedo for a gear change you have to physically change the little gear that drives the cable.

I've not done it myself, but I've got a 98 stang too and I've been told it is no big deal. See this site.